science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: ethyne					Other Names: acetylene

Formula: C2H2						CAS-No.: 74-86-2

Study: photolysis, quantum yields

                
Authors: A. Laeuter, K.S. Lee, K.H. Jung, R.K. Vatsa, J.P. Mittal, H.-R. Volpp

Title: Absolute primary H atom quantum yield measurements in the 193.3 and 121.6 nm photodissociation of acetylene

Journal/Source: Chem. Phys. Lett., 358, 314–319, (2002); https://doi.org/10.1016/S0009-2614(02)00625-5


Data: 

Energy/Wavelength range: 193.3 nm; 121.6 nm

Resolution: 

Temperature: 

Temperature dependence:

Pressure/Concentration:

Phase: gas

pH:


Comments: Using HCl and CH4 photolysis at 193.3 and 121.6 nm, respectively, as a reference, values of PHI(193.3 nm) = 0.94 +- 0.12 and 
PHI(121.6 nm) = 1.04 +- 0.16 were obtained.

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